Sexy starlet Mila Kunis is no stranger to catching a few appreciative glances, but the "Black Swan" actress has a secret about her own smoldering stare.

"I was blind in one eye for many years, and nobody knew," the Ukraine native, 27, told February's Cosmopolitan about her struggle with chronic iritis, an inflammation of the iris.

Fortunately, the star's health issues have a happy ending.

"I'm not blind anymore," she says. "I had surgery a couple of months ago. They cut it open and dropped a new lens in there."

Her eyes weren't the only facial feature Kunis opened up about to the mag, which named her this year's Fun Fearless Female.

When asked which of her co-stars was the best kisser, the newly single actress (she split with longtime beau Macaulay Culkin several months ago) gave props to several of her colleagues, citing "Justin [Timberlake]'s upper lip ... Natalie [Portman]'s bottom lip ... Ashton [Kutcher]'s stubble ... James [Franco]'s chip ... and Jason [Segel]'s teeth."